Arocatus melanostoma Scott, 1874

Gao, Cuiqing, Kondorosy, Előd & Bu, Wenjun, 2013, A Review Of The Genus Arocatus From Palaearctic And Oriental Regions (Hemiptera: Heteroptera: Lygaeidae), Raffles Bulletin of Zoology 61 (2), pp. 687-704 : 691-693

Arocatus melanostoma Scott, 1874

( Figs. 1D, E ; 3C, D, N–P )

Arocatus melanostoma Scott, 1874: 426 . Lectotype ( Péricart, 1999b: 82) (male): Japan; BMNH.

Arocatus maculifrons Jakovlev, 1881: 208 (syn. Horváth, 1889: 326). Holotype (male): Russia (Far East), Vladivostok; ZMAS.

References. — Lindberg, 1934: 23 ( China: Gansu record); Esaki, 1952: 221 (redescription, distribution); Stichel, 1959: 314 (listed); Slater, 1964a: 24 (catalogue); Zheng & Zou, 1981: 18 (keyed, redescription); Liu & Zheng, 1992: 266 (figure, redescription); Liu, 1996: 38 ( China: Jilin record); Dong et al., 1997: 238 (redescription, distribution); Cui et al., 1999: 57 ( China: Henan record); Bu et al., 2001: 270 (listed, distribution); Hua, 2000: 187 (listed); Péricart, 2001: 38 (catalogue); Li et al., 2007: 30 ( China: Shanxi record); Zhang et al., 2008: 801 ( China: Anhui record); Xie et al., 2009: 341 (keyed, redescription); Ye, 2009: 55 ( China: Zhejiang record); Vinokurov et al., 2010: 182 (catalogue); Ishikawa et al., 2012: 376, pl. 84 (distribution, photos of larva); Aukema et al., 2013: 354 (catalogue).

Diagnosis. — Dorsum of body with semidecumbent and moderately long erect white hairs. Head red, with separated black spots on vertex and clypeus; middle part of ventral surface of head black. Pronotum red with an inverted V-shaped black vitta, with slightly elevated median keel behind calli. Scutellum black with red median longitudinal keel. Clavus black except extreme base. Corium black, with costal and apical margins broadly red, apex of the latter narrowly black. Eyes, antennae and legs black. Hemelytral membrane translucent, dark brown. Posterior margin of pygophore and cuplike sclerite fused together ( Fig. 3C, D ). Paramere as shown in Fig. 3N–P .

Type material examined. — Lectotype, male: Japan, coll. Scott, 88-11 ( BMNH).

Additional material examined. — CHINA: Hebei: 1 male, 3 females, Chiyabao, Xiaowutaishan , coll. W. J. Bu & W. B. Zhu, 2 Aug.2000, alt. 1300 m ( NKUM) ; 1 female, Xinglong , coll. W. J. Bu, 23 Jun.1995, alt. 500 m ( NKUM) ; 1 male, Wulingshan, Xinglong , coll. N. Lu, 22 Jun.1995, alt. 1850 m ( NKUM) ; Tianjin: 1 female, Baxianzhuozi, Jixian county , coll. G. Q. Liu, 9 Sep.2001 ( NKUM) ; Heilongjiang: 1 male, Maoershan , 4 Jul.1988 ( NKUM) ; 2 females, Xiaojinshan , 21 Jun.1961 ( NKUM) ; 1 female, Yichun , coll. H. F. Zhu, 27 May 1950 ( IZAS) ; Liaoning: 1 male, Dongling, Shenyang , coll. M. C. Wei, 24 May 1989 ( NKUM) ; Shaanxi: 1 female, Badu, Longxian county , coll. B. X. Jin, 19 May 1987 ( NKUM) ; Anhui: 1 male, Yunwusi, Huangshan , coll. S. Z. Wang, 15 May 1978 ( NKUM) ; 1 female, Tiantangzhai township, Jinzhai county, Liu’an city, coll. X. M. Li, 3 Aug.2004, alt. 479 m ( NKUM) ; Jiangxi: 2 males, Guling, Lushan , coll. S. L. Liu, 11–14 Sep.1965 ( NKUM) ; Zhejiang: 1 female, Laodian, Tianmushan , coll. S. L. Liu, 13 Aug.1965 ( NKUM) ; Hubei: 2 males, Shennongjia , coll. L. Y. Zheng & H. G. Zou, 29 Jun.1977 ( NKUM) ; 1 male, 1 female, Shanyuan, Hefeng , coll. L. Y. Zheng, 18 Jul.1999, alt. 1260 m, on Dioscorea sp. ( NKUM) ; Jilin: 1 female, coll. M. Volkoff, 28 Jul.1939 ( IZAS) ; Fujian: 1 male, Chong’an , coll. C. L. Ma, 17 May 1960, alt. 740–900 m ( IZAS) ; 1 female, “Kuatun” [= Guadun ], “Fukien” [= Fujian], 27.40°N 117.40°E, coll. J. Klapperich, 16 Jun.1938, alt. 2300 m ( NMPC) ; 1 female, “Kuatun” [= Guadun ], “Fukien” [= Fujian], 10 May [19]46 (Tschungsen) ( NMPC) .

Host plants. — Dioscorea sp. (new discovery in our study).

Distribution. — Asia: China (Anhui, Beijing, * Fujian, Gansu, Guangdong, Hainan, Hebei, Heilongjiang, Henan, Hubei,

Hunan, Jiangxi, Jilin, * Liaoning, Shanxi, Shaanxi, * Tianjin, Zhejiang ), Japan, Korea, Russia (Far East, Siberia).

Figures

Fig. 1. Arocatus spp., dorsal, ventral or lateral view. A, A. longiceps; B, C, A. melanocephalus; D, E, A. melanostoma; F, G, A. nanus; H, I, A. nicobarensis, one of the syntypes. Scale bars = 5.0 mm.

Fig. 3. A–G, J, K, Pygophores in posterodorsal or posterior view. A, B, A. melanocephalus; C, D, A. melanostoma; E, F, A. pseudosericans, new species; G, A. rufipes; J, K, A. sericans. H, I, L–T: Left parameres in different aspects. H, I, A. rufipes; L, M, A. melanocephalus; N–P, A. melanostoma; Q, R, A. pseudosericans, new species; S, T, A. sericans. Scale bars = 0.5 mm (A–G, J, K), 0.1 mm (H, I, L–T).